Valeria Ferro, an inspector of the Turin Homicide Squad, is a young and extremely skilled police officer, with a keen intuition and an obsession: the truth. But her past reveals a wound that dates back to her adolescence, when her mother, Lucia, was convicted of her husband's murder.
After a night at the club, a man tries to enter his car but is blocked by the software running it, because of his alcohol level. The man and the car discuss like a couple until his physical and verbal violence grows unexpectedly.
